Never Cross a Man Not Afraid to Die W.E.B. Du Bois I sit with Shakespeare and he flinches not.
Who worked with flinches to develop his theory?
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Who worked with flinches to develop his theory?
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Who worked with flinches to develop his theory? . Charles Darwin . What is speciation? . The formation of new species due to the accumulation of mutations. What is it called when 2 species are evolving side by side? . Co-evolution. - PowerPoint PPT Presentation
Transcript of Who worked with flinches to develop his theory?
Who worked with flinches to develop his theory?
Charles Darwin
What is speciation?
The formation of new species due to the accumulation of mutations
What is it called when 2 species are evolving side by side?
Co-evolution
What were Darwin’s two main points of Evolution and what did the two points mean?
1. Natural Selection • Some living thing are more suitable or
better for survival
2. Descent with Modification• An organism slowly accumulates
mutation over million of years1. 2.
What is it called when the genes are available to the population?
Gene Pool
What is the difference between gradualism and punctuated equilibrium?
Gradualism • the slow accumulation of mutation over time
Punctuated equilibrium• When organisms stay stable for long periods of time. • Then, there is a short amount of time while there is a major
change when organisms mutate
• Then, they stay in that phase for a long time once again.
Who observed the amount of time that affected mountains, rivers, landforms and masses?
Charles Lyell
Who observed that people produce many children, but we don’t use all our natural resources?
Thomas Malthus
Who wrote up his findings and sent them to Darwin only to find they both had very similar observations?
Alfred Wallace
What are the remains of an animal that no longer in existence?
FOSSILS
What is the chronological “story” showing the life of animals, plants, humans?
FOSSIL RECORD
If you no longer exist and your type has died out, what are you?
EXTINCT
A structure that looks the same but does different things?
Homologous Structures
A structure that looks different but does the same thing?
Analogous Structures
What is a structure that an organism once used but no longer uses?
Vestigial Structures
Natural and expected differences in a population?
Variation
Natural Selection
VS.
Artificial Selection
Natural selection
• Where the organisms survive or don’t survive based on survival of the fittest
Artificial Selection
• Where it permits organisms to live even though they would not have if left up to nature and visa versa
What is pesticides and antibiotics?
Antibiotic overuse will cause things such as medications to not work in the future because organisms adapt to them called natural variation
Pesticides work in a similar way, farmers use them on crops
What are the different types of isolation and what do they do?
Geographic Isolation
• Where the location is difficult to breed
Reproductive Isolation
• Where two individual are not on the same reproductive cycle such as skunks
Behavioral Isolation
• Where a physical action that either separates or keeps the females from being interested in the males such as the cranes’ dance
What are the types of evolution?
Divergent Evolution
• 2 or more organism that started out together on a similar path but later on they go into different paths
Convergent Evolution
• Organisms start at different point but they come together with similar features million of years later.
Parallel Evolution
• 2 or more organisms evolve along a specific pathway but don’t share a common ancestor
What will I get from doing something
vs.
What will happen to me if I get caught
Cost- benefit analysis
What is it called when there is a change in the gene pool from generation to generation?
Genetic Drift
What are the types of selection?
Stabilizing Selection • Get rid of extremes and chooses the average
Directional Selection• An extreme favors over other extreme
Disruptive Selection • Favors both extremes at the same time
What gas did not exist in the world until the first organism on Earth did what?
Oxygen did not exist in the world until the anaerobic (did not breath oxygen) gave off the oxygen as by-products.
Therefore, oxygen became a part of the atmosphere after million of years
What is a adaptive radiation?
Nature hates an area void of life such as a vacuum. Therefore, if there is the possibility of life, there will be life.
What hypothesis developed how organism evolved from simple to more complex organism?
Endosymbiotic Theory
Who used water vapor, volcanic gases combined with electricity to create amino acids?
Miller and Urey
What is it called when the results of a natural disaster limits the gene pool and the organisms that survive are the “founders” of the next generation?
Genetic Bottleneck and
The Founder Effect
